- source luminosity
- Американизм: световая отдача источника
Универсальный англо-русский словарь. Академик.ру. 2011.
source luminosity
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Luminosity — has different meanings in several different fields of science.In photometry and color imagingIn photometry, luminosity is sometimes incorrectly used to refer to luminance, which is the density of luminous intensity in a given direction. The SI… … Wikipedia
Luminosity function — The luminosity function or luminous efficiency function describes the average sensitivity of the human eye to light of different wavelengths. It should not be considered perfectly accurate in every case, but it is a very good representation of… … Wikipedia
luminosity — /looh meuh nos i tee/, n., pl. luminosities. 1. luminance (def. 2). 2. the quality of being intellectually brilliant, enlightened, inspired, etc.: The luminosity of his poetry is unequaled. 3. something luminous. 4. Astron. the brightness of a… … Universalium
Source counts — The source counts distribution of radio sources from a radio astronomical survey is the cumulative distribution of the number of sources (N) brighter than a given flux density (S). It is one out of a half dozen cosmological tests that was… … Wikipedia
luminosity — noun (plural ties) Date: 1634 1. a. the quality or state of being luminous b. something luminous 2. a. the relative quantity of light b. relative brightness of something 3. the relative quantity of radiation emitted by a celestial source (as a… … New Collegiate Dictionary
luminosity — lu·mi·nos·i·ty || ‚luËmɪ nÉ‘sÉ™tɪ / nÉ’s n. quality or condition of being luminous, brightness; something which emits light; strength of light emitted from a light source … English contemporary dictionary
luminosity — lu•mi•nos•i•ty [[t]ˌlu məˈnɒs ɪ ti[/t]] n. pl. ties 1) luminance 2) 2) the quality of being intellectually brilliant, enlightened, inspired, etc 3) something luminous 4) astron. the brightness of a star as compared with that of the sun 5) opt… … From formal English to slang
Ultraluminous X-ray source — An ultra luminous X ray source (ULX) is an astronomical source of X rays that is not in the nucleus of a galaxy, and is more luminous than 1039 erg/s (1032 watts), assuming that it radiates isotropically. Typically there is about one ULX per… … Wikipedia
Strong (source) — In astronomy in particular, for the description of celestial sources of radiation, strong is understood to refer to intensity when observed from the Earth or another particular body, relative to other sources relevant in the same observational… … Wikipedia
radiance — Synonyms and related words: aura, blare, blaze, blaze of glory, blazing light, blinding light, blitheness, blithesomeness, bright light, brightness, brilliance, brilliancy, brilliant light, burst of light, charisma, cheer, cheerfulness,… … Moby Thesaurus
lu|mi|nance — «LOO muh nuhns», noun. the intensity of light in relation to the area of its source; luminosity: »The sensitivity of the eye to differences in luminance decreases as the luminance increases (New Scientist) … Useful english dictionary
